Relating to both the head and the nose, used in anatomy to describe structures or pathways connecting these regions.
From Greek kephalē (head) + Latin nāsus (nose). This anatomical term mixes Greek and Latin even in a single word, which was common practice in medical terminology despite creating this odd linguistic hybrid.
Scientists weren't being pretentious—they mixed Greek and Latin because Greek was used for newer discoveries while Latin was already embedded in anatomy, so sometimes it was easier to just combine whatever you had.
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